Evidence map›Paper›PMID 31071346›Full record

ReviewPharmacology & therapeutics2019

A marijuana-drug interaction primer: Precipitants, pharmacology, and pharmacokinetics.

Emily J Cox, Neha Maharao, Gabriela Patilea-Vrana, Jashvant D Unadkat, Allan E Rettie, Jeannine S McCune, Mary F Paine

Open access · greenAbstract readReview
In one paragraph

Review in Pharmacology & therapeutics, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 59 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
59citing papers in PubMed, 1 pooled it
8.6field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

59 citing papers in PubMed, 1 synthesis or guideline pooled it, 86 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. Article
  5. Article
  6. The psychoactive cannabinoid THC inhibits peripheral nociceptors by targeting NaNeuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2026
    Article
  7. Article
  8. UGT2B7-mediated drug-drug interaction between cannabinoids and hydromorphone.Drug metabolism and disposition: the biological fate of chemicals · 2025
    Article
  9. Article
  10. Article
  11. Review
  12. Review
  13. Part 1: Evaluation of Pediatric Cannabis-Drug Interaction Reports.Pharmacology research & perspectives · 2025
    Review
  14. Article
  15. Article
  16. Review
  17. Review
  18. Review
  19. Review
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 3 institutions in 1 country.

Emily J CoxDepartment of Pharmaceutical Sciences, College of Pharmacy and Pharmaceutical Sciences, Washington State University, Spokane, WA, United States of America.
Neha MaharaoDepartment of Pharmaceutics, School of Pharmacy, University of Washington, Seattle, WA, United States of America.
Gabriela Patilea-VranaDepartment of Pharmaceutics, School of Pharmacy, University of Washington, Seattle, WA, United States of America.
Jashvant D UnadkatDepartment of Pharmaceutics, School of Pharmacy, University of Washington, Seattle, WA, United States of America; Center of Excellence for Natural Product-Drug Interaction Research, United States of America.
Allan E RettieDepartment of Medicinal Chemistry, School of Pharmacy, University of Washington, Seattle, WA, United States of America; Center of Excellence for Natural Product-Drug Interaction Research, United States of America.
Jeannine S McCuneDepartment of Population Science, City of Hope, Duarte, CA, United States of America; Center of Excellence for Natural Product-Drug Interaction Research, United States of America.
Mary F PaineDepartment of Pharmaceutical Sciences, College of Pharmacy and Pharmaceutical Sciences, Washington State University, Spokane, WA, United States of America; Center of Excellence for Natural Product-Drug Interaction Research, United States of America. Electronic address: mary.paine@wsu.edu.
University of Washington · USWashington State University Spokane · USCity of Hope · US

Funding

Pharmacology CoreU54AT008909 · NCCIH · WASHINGTON STATE UNIVERSITY · PI PAINE, MARY F · 2015 to 2024
$22.4M
Understanding Fetal Exposure to Cannabinoids Through In Vitro and In Vivo StudiesP01DA032507 · NIDA · UNIVERSITY OF WASHINGTON · PI UNADKAT, JASHVANT D · 2013 to 2023
$12.4M
Mechanisms Underlying Drug-Diet InteractionsR01GM077482 · NIGMS · WASHINGTON STATE UNIVERSITY · PI PAINE, MARY F · 2007 to 2014
$3.3M
Optimizing Busulfan: Efficacy, Toxicity, and PharmacometabolomicsR01CA182963 · NCI · UNIVERSITY OF WASHINGTON · PI MCCUNE, JEANNINE S · 2014 to 2018
$2.5M
Cyclophosphamide Pharmacokinetics and PharmacometabolomicsR01GM129863 · NIGMS · BECKMAN RESEARCH INSTITUTE/CITY OF HOPE · PI MCCUNE, JEANNINE S · 2018 to 2019
$672k
NCCIH NIH HHS U54 AT008909NCI NIH HHS R01 CA182963NIDA NIH HHS P01 DA032507NIGMS NIH HHS R01 GM077482NIGMS NIH HHS R01 GM129863
6 · The paper itself

Abstract

In the United States, the evolving landscape of state-legal marijuana use for recreational and/or medical purposes has given rise to flourishing markets for marijuana and derivative products. The popularity of these products highlights the relative absence of safety, pharmacokinetic, and drug interaction data for marijuana and its constituents, most notably the cannabinoids. This review articulates current issues surrounding marijuana terminology, taxonomy, and dosing; summarizes cannabinoid pharmacology and pharmacokinetics; and assesses the drug interaction risks associated with co-consuming marijuana with conventional medications. Existing pharmacokinetic data are currently insufficient to fully characterize potential drug interactions precipitated by marijuana constituents. As such, increasing awareness among researchers, clinicians, and federal agencies regarding the need to conduct well-designed in vitro and clinical studies is imperative. Mechanisms that help researchers navigate the legal and regulatory barriers to conducting these studies would promote rigorous evaluation of potential marijuana-drug interactions and inform health care providers and consumers about the possible risks of co-consuming marijuana products with conventional medications.

Indexed as

Drug InteractionsAnimalsCannabinoidsHumansMarijuana UseCannabinoidsCannabinoidDrug interactionMarijuanaNatural productPharmacokinetics

Identifiers

PMID31071346
PMCPMC6708768
OpenAlexW2944476630

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.